(III) FULL FACE OXYGEN MASKS, and

 (IV) VSD: Vertical Situation Display;

 provided such installation occurs no later than April 30, 2004.
 After each installation of such additional modifications each
 monthly installment of Basic Rent will be increased by \*\*Material
 Redacted\*\* of the Additional Modifications Actual Cost commencing
 on the first Basic Rent Payment Date following such installation.
 Upon installation, such additional modifications shall become a
 part of the Aircraft and title thereto shall vest in Owner in
 accordance with Section 9 (b) of the Lease."

 E. In Exhibit C, a new Part 7 is added after the new Part 6, as follows:

 "7. MCPH

 Subject to mutual agreement, Lessee and Lessor may enter into a
 Maintenance Cost Per Hour arrangement (MCPH) with GE Engine
 Services (GEES) to cover engine scheduled refurbishments for the
 Engines subject to the Lease. Related workscopes, engine repair
 specifications and


 3



 general terms and conditions covered by MCPH shall be mutually
 agreed between Lessor, Lessee and GEES."

 F. To clarify the ownership impact of alterations, modifications, and
 additions the following amendments are made to Section 9 (b) of the
 Lease:

 1. In the fourth sentence the word "Lessor" is replaced by "Owner";
 and

 2. In the fifth sentence the phrase "or Owner" is added after the
 word "Lessor".

 G. For the purpose of correcting certain typographical errors in the
 prior exhibit, Revised Exhibit G (Form of Letter of Credit attached
 hereto as Schedule 1) shall replace in entirety the existing Exhibit G
 for all purposes of the Lease.

2. Lease Supplement.